Consult the Internet and it’s always good to have several different reloading manuals to verify information, remember to work your way up don’t start near the top. Also is yours a 6.5 x 284 norma or 6.5 x 2 84 Winchester it makes a difference.
If you do a search you will find loads of data. There are couple of 20 plus page threads about different loads when everyone was shooting one before the 6.5 creed not that its any better . I loaded 48.5 grains of 100HV but my gun pressured out eerily and would only run about 2860FPS but it was a good load. Honestly I think the 6.5X284Norma is a much better round. 140 VLD, or the 143 ELDX. There is also an elite hunter in 140 grain that might be a little easier to tune. Use Lapua brass for the longest life.